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  1. <?php
  2.  
  3. /*
  4.  * OIDplus 2.0
  5.  * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft
  6.  *
  7.  * Licensed under the Apache License, Version 2.0 (the "License");
  8.  * you may not use this file except in compliance with the License.
  9.  * You may obtain a copy of the License at
  10.  *
  11.  *     http://www.apache.org/licenses/LICENSE-2.0
  12.  *
  13.  * Unless required by applicable law or agreed to in writing, software
  14.  * distributed under the License is distributed on an "AS IS" BASIS,
  15.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16.  * See the License for the specific language governing permissions and
  17.  * limitations under the License.
  18.  */
  19.  
  20. namespace ViaThinkSoft\OIDplus;
  21.  
  22. // phpcs:disable PSR1.Files.SideEffects
  23. \defined('INSIDE_OIDPLUS') or die;
  24. // phpcs:enable PSR1.Files.SideEffects
  25.  
  26. class OIDplusQueryResultOci extends OIDplusQueryResult {
  27.  
  28.         /**
  29.          * @var bool
  30.          */
  31.         protected $no_resultset;
  32.  
  33.         /**
  34.          * @var mixed
  35.          */
  36.         protected $res;
  37.  
  38.         /**
  39.          * @param mixed $res
  40.          */
  41.         public function __construct($res) {
  42.                 $this->no_resultset = is_bool($res);
  43.  
  44.                 if (!$this->no_resultset) {
  45.                         $this->res = $res;
  46.                 }
  47.         }
  48.  
  49.         /**
  50.          *
  51.          */
  52.         public function __destruct() {
  53.                 if ($this->res) {
  54.                         oci_free_statement($this->res);
  55.                 }
  56.         }
  57.  
  58.         /**
  59.          * @return bool
  60.          */
  61.         public function containsResultSet(): bool {
  62.                 return !$this->no_resultset;
  63.         }
  64.  
  65.         /**
  66.          * @return void
  67.          */
  68.         public function prefetchAll() {
  69.                 if (!is_null($this->prefetchedArray)) return;
  70.                 $this->prefetchedArray = array();
  71.                 oci_fetch_all($this->res, $this->prefetchedArray, 0, -1, OCI_FETCHSTATEMENT_BY_ROW);
  72.         }
  73.  
  74.         /**
  75.          * @return int
  76.          */
  77.         protected function do_num_rows(): int {
  78.                 // This function does not return number of rows selected! For SELECT statements this function will return the number of rows, that were fetched to the buffer with oci_fetch*() functions.
  79.                 //return oci_num_rows($this->res);
  80.  
  81.                 if (is_null($this->prefetchedArray)) {
  82.                         $this->prefetchAll();
  83.                 }
  84.  
  85.                 return count($this->prefetchedArray) + $this->countAlreadyFetched;
  86.         }
  87.  
  88.         /**
  89.          * @return array|null
  90.          */
  91.         protected function do_fetch_array()/*: ?array*/ {
  92.                 $ret = oci_fetch_array($this->res);
  93.                 if ($ret === false) $ret = null;
  94.                 return $ret;
  95.         }
  96.  
  97.         /**
  98.          * @return object|null
  99.          */
  100.         protected function do_fetch_object()/*: ?object*/ {
  101.                 $ret = oci_fetch_object($this->res);
  102.                 if ($ret === false) $ret = null;
  103.                 return $ret;
  104.         }
  105. }
  106.